| 单词 | rack up | 
| 释义 | Verb: rack up  'rak'úp
 Derived forms: racked up, racking up, racks up Type of: advance, beat, beat out, crush, fill, fill up, gain, gain ground, get ahead, lay, make headway, place, pose, position, pull ahead, put, set, shell, trounce, vanquish, win  | 
	
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